TY - JOUR T1 - Comparison of outcome measures for patients with chronic obstructive pulmonary disease (COPD) in an outpatient setting. JO - Thorax PY - 1997/10/01 AU - Harper R AU - Brazier JE AU - Waterhouse JC AU - Walters SJ AU - Jones NM AU - Howard P ED - DO - DOI: 10.1136/thx.52.10.879 VL - 52 IS - 10 SP - 879 EP - 887 Y2 - 2025/11/02 ER -